Child, parent and family characteristics (n=161)
| Characteristics | Total (N=161) | Urban (n=90) | Rural (n=71) | P value |
| Child | ||||
| Age at diagnosis, years (mean, SD) | 4.9 (3.3) | 4.7 (3.2) | 5.1 (3.3) | 0.48 |
| Average treatment period, months (mean, SD) | 11.6 (9.6) | 12.4 (10.4) | 10.6 (8.5) | 0.25 |
| Gender, n (%) | ||||
| Male | 94 (58.4) | 54 (60.0) | 40 (56.3) | 0.64 |
| Female | 67 (41.6) | 36 (40.0) | 31 (43.7) | |
| No Health insurance | 52 (33.1) | 32 (35.5) | 20 (28.1) | 0.33 |
| Parents Age at diagnosis, years (mean, SD) | ||||
| Education (the highest degree of parental education) , n (%) | 33.2 (4.3) | 33.6 (4.4) | 32.8 (4.7) | 0.34 |
| Middle school or lower, n (%) | 67 (41.9) | 18 (20.0) | 50 (70.4) | < 0.001 |
| High/vocational school , n (%) | 32 (20.0) | 17 (18.9) | 15 (21.1) | |
| College or above, n (%) | 61 (38.1) | 55 (61.1) | 6 (8.5) | |
| Household | ||||
| Family size (mean, SD) | 4.1 (1.1) | 3.8 (0.9) | 4.5 (1.1) | < 0.001 |
| Household monthly income, US$ (mean, SD) | 1287.31 (2518.36) | 1681.56 (3082.12) | 783.35 (1379.65) | 0.02 |
| Area of residence, n (%) | ||||
| Shanghai | 33 (20.6) | 30 (33.3) | 3 (4.2) | <0.001 |
| Other provinces | 128 (79.4) | 60 (66.7) | 68 (95.8) | |